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Accounting for syringe dead space Every syringe has a small amount of "dead space," the volume of liquid that remains in the needle hub and syringe tip after you push the plunger all the way down
PMID 808970
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It is possible for the duration of the effects of a B12 injection to vary greatly among individuals
For the most part, the benefits outweigh the risks involved
Timing & Dosage Considerations Split Dosing: Many protocols divide the daily dose into two or three smaller administrations to maintain steady blood levels
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